String tableA1
String tableA2
tableB tableB

String tableB1
String tableB2

        Session session = (Session) getEntityManager().getDelegate();
        Criteria criteria = session.createCriteria(tableARecord.class, "record")
        if (filter != null) {
            if (!StringUtils.isEmpty(filter.getTableA1())) {
                criteria.add(Expression.ilike("tableA1", filter.getTableA1(), MatchMode.ANYWHERE));
            }
        }

String surname;
String name;
Poistion position;

String position;
String place;

Criteria tableB = criteria.createAlias("tableB", "b");
tableB.add(Expression.ilike("b.tableB1", pattern, MatchMode.ANYWHERE));